Isdn Answering Configuration - Tieline ViA User Manual

DN/MSN numbers. This is the best way to answer calls from codecs in a predictable
manner.
SPID Numbers in North America
ISDN relies on an initialization procedure for associating Service Profiles with specific
terminating equipment (e.g. your audio codec) rather than lines. In the US Telcos assign
a Service Profile ID (SPID) number which assists in identifying different ISDN services
across the network. Your Telco must provide a SPID for each B channel you order when
connecting over US-Nat or US-AT&T networks in the US. A SPID is not required when
using the AT&T PTP protocol.
Typically, each ISDN BRI service in the US will have two SPIDs and these must be
entered correctly. When you enter a SPID into your codec and connect it to an ISDN line,
an initialization and identification process takes place, whereby the terminating equipment
(your codec) sends the SPID to the switch. The switch then associates the SPID with a
specific Service Profile and directory number.
Note: SPID numbers normally include the phone number and additional prefix or suffix
digits up to 20 digits long.
26.2

ISDN Answering Configuration

Important Note: For more detailed information about configuring ISDN Answer Config
parameters using the HTML5 Toolbox Web-GUI, including bonding and 'route'
configuration, see
ISDN Answering Configs determine how the codec will behave when answering ISDN calls at a
particular site. ISDN module settings may need to be adjusted depending on your country and
network requirements. Note: You can copy similar programs between codecs installed at different
locations and configure site-specific settings for how the module should connect.
1. Press the HOME
2. Navigate to Answering and then tap ISDN Answering
© Tieline Pty. Ltd. 2017
Configuring ISDN Answering.
button to return to the Home screen, then tap Settings
ViA User Manual v2.0
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